{"id":6695,"date":"2026-06-19T01:29:22","date_gmt":"2026-06-19T01:29:22","guid":{"rendered":"https:\/\/materialparts.com\/74hct541d\/"},"modified":"2026-06-19T01:29:22","modified_gmt":"2026-06-19T01:29:22","slug":"74hct541d","status":"publish","type":"post","link":"https:\/\/materialparts.com\/ar\/74hct541d\/","title":{"rendered":"74HCT541D"},"content":{"rendered":"

\u0646\u0638\u0631\u0629 \u0639\u0627\u0645\u0629 \u0639\u0644\u0649 \u0627\u0644\u0645\u0646\u062a\u062c<\/h2>\n

The 74HCT541D from Nexperia is an octal non-inverting buffer\/line driver with 3-state outputs and TTL-compatible input levels in an SOIC-20 package. Two active-LOW output enables (OE1, OE2) control all eight outputs. The data flow-through pinout and 6 mA output drive make it ideal for 5V bus buffering, memory I\/O port expansion, and TTL-to-CMOS interface applications.<\/p>\n

\u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a \u0627\u0644\u0631\u0626\u064a\u0633\u064a\u0629<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n
Logic Function<\/td>\nOctal non-inverting buffer\/line driver, 3-state<\/td>\n<\/tr>\n
\u062c\u0647\u062f \u0627\u0644\u0625\u0645\u062f\u0627\u062f<\/td>\n4.5V to 5.5V (HCT)<\/td>\n<\/tr>\n
\u062a\u0623\u062e\u064a\u0631 \u0627\u0644\u0627\u0646\u062a\u0634\u0627\u0631<\/td>\n28 ns max @ 4.5V<\/td>\n<\/tr>\n
Output Drive<\/td>\n\u00b16 mA<\/td>\n<\/tr>\n
\u062a\u064a\u0627\u0631 \u0627\u0644\u062a\u0647\u062f\u0626\u0629<\/td>\n160 \u00b5A max<\/td>\n<\/tr>\n
Input Levels<\/td>\nTTL (74HCT541)<\/td>\n<\/tr>\n
\u0646\u0648\u0639 \u0627\u0644\u0625\u062e\u0631\u0627\u062c<\/td>\n3-state (high-impedance when disabled)<\/td>\n<\/tr>\n
Output Enables<\/td>\n2\u00d7 active-LOW (OE1, OE2), NOR-gated<\/td>\n<\/tr>\n
\u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u062a\u0634\u063a\u064a\u0644<\/td>\n-40 \u062f\u0631\u062c\u0629 \u0645\u0626\u0648\u064a\u0629 \u0625\u0644\u0649 +125 \u062f\u0631\u062c\u0629 \u0645\u0626\u0648\u064a\u0629<\/td>\n<\/tr>\n
\u0627\u0644\u062d\u0632\u0645\u0629<\/td>\nSOIC-20 (SOT163-1, 12.8\u00d77.5 mm)<\/td>\n<\/tr>\n<\/table>\n

\u0627\u0644\u0645\u064a\u0632\u0627\u062a<\/h2>\n
    \n
  • TTL-compatible input levels for 5V system interfacing<\/li>\n
  • Dual active-LOW output enables (NOR-gated)<\/li>\n
  • Data flow-through pinout for easy PCB layout<\/li>\n
  • 6 mA output drive capability<\/li>\n
  • Non-inverting outputs<\/li>\n
  • Input clamp diodes for overvoltage interface<\/li>\n
  • CMOS low power dissipation with TTL inputs<\/li>\n<\/ul>\n

    \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/h2>\n
      \n
    • 5V microprocessor bus buffering with TTL interface<\/li>\n
    • Memory I\/O port expansion<\/li>\n
    • TTL-to-CMOS level translation<\/li>\n
    • Backplane and data bus driving in 5V systems<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The 74HCT541D from Nexperia is an octal non-inverting buffer\/line driver with 3-state outputs and TTL-compatible input levels in an SOIC-20 package. Two active-LOW output enables (OE1, OE2) control all eight outputs. The data flow-through pinout and 6 mA output drive make it ideal for 5V bus buffering, memory I\/O port expansion, and TTL-to-CMOS […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[26,13],"tags":[],"chip_brand":[140],"class_list":["post-6695","post","type-post","status-publish","format-standard","hentry","category-digital-signal-processors-dsp","category-integrated-circuits-ics","chip_brand-nexperia"],"acf":{"brief_explanation":"Octal buffer\/line driver, 3-state, TTL inputs, SOIC-20","date_code":"","package_case":"SOIC-20 \/ SOT163-1 (12.8\u00d77.5\u00d72.65 mm, 1.27mm pitch)","in_stock":600,"datasheet":"https:\/\/assets.nexperia.com\/documents\/data-sheet\/74HC_HCT541.pdf","price":"$0.22 @ 1ku","product_introduction":"The 74HCT541D from Nexperia is an octal non-inverting buffer\/line driver with 3-state outputs and TTL-compatible input levels in an SOIC-20 package. Dual active-LOW output enables, 6 mA drive, and data flow-through pinout make it ideal for 5V bus buffering, memory I\/O port expansion, and TTL-to-CMOS interfacing.","working_principle":"The 74HCT541D implements eight identical non-inverting buffer channels with 3-state output capability. Each channel passes the input signal to the output without inversion (Yn = An) when enabled. The HCT variant features TTL-compatible input threshold voltages (VIH = 2.0V, VIL = 0.8V), allowing direct interface with 5V TTL outputs from microcontrollers and legacy logic. The two output enable inputs (OE1, OE2) are NOR-gated; if either OE is HIGH, all eight outputs enter high-impedance state. The data flow-through pinout places all inputs (pins 2-9) on one side and all outputs (pins 11-18) on the other, simplifying PCB routing for bus-oriented designs. Input clamp diodes protect against voltages exceeding VCC.","pin_description":"\n
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>\n
      1<\/td>OE1<\/td>Input<\/td>Output enable 1 (active LOW)<\/td><\/tr>\n
      2-9<\/td>A0-A7<\/td>Input<\/td>8 data inputs (TTL level)<\/td><\/tr>\n
      10<\/td>GND<\/td>Power<\/td>Ground (0V)<\/td><\/tr>\n
      11-18<\/td>Y0-Y7<\/td>Output<\/td>8 data outputs (3-state)<\/td><\/tr>\n
      19<\/td>OE2<\/td>Input<\/td>Output enable 2 (active LOW)<\/td><\/tr>\n
      20<\/td>VCC<\/td>Power<\/td>Supply voltage (4.5-5.5V)<\/td><\/tr>\n<\/table>","application_scenarios":"
        \n
      • 5V microprocessor bus buffering with TTL interface<\/li>\n
      • Memory I\/O port expansion with 3-state bus sharing<\/li>\n
      • TTL-to-CMOS level translation in mixed 5V systems<\/li>\n
      • Backplane and data bus driving in 5V industrial systems<\/li>\n<\/ul>","alternative_models":"\n
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>\n
        Nexperia<\/td>74HC541D<\/td>SOIC-20<\/td>CMOS inputs (2.0-6.0V)<\/td><\/tr>\n
        TI<\/td>SN74HCT541DW<\/td>SOIC-20<\/td>Functionally equivalent<\/td><\/tr>\n
        ON Semi<\/td>MC74HCT541ADWR2G<\/td>SOIC-20<\/td>Functionally equivalent<\/td><\/tr>\n
        Nexperia<\/td>74HCT541PW<\/td>TSSOP-20<\/td>Smaller footprint<\/td><\/tr>\n
        Nexperia<\/td>74HCT244D<\/td>SOIC-20<\/td>Same function, split 4+4 enables<\/td><\/tr>\n<\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/6695","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/comments?post=6695"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/6695\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/media?parent=6695"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/categories?post=6695"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/tags?post=6695"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/chip_brand?post=6695"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}